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7,097
RESULTS

Media Type
2
collections
6,005
texts
514
movies
498
audio
52
images
16
concerts
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Availability
6,818
Always Available
266
Available to Borrow
13
Waitlist
Year
50
2018
42
2017
51
2016
60
2015
134
2014
65
2013
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Topics & Subjects
1,518
Coal mines and mining
1,046
Coal
816
coal
784
DTIC Archive
611
COAL
401
NASA Technical Reports Server (NTRS)
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Collection
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Creator
784
defense technical information center
401
nasa technical reports server (ntrs)
220
alberta. energy resources conservation board
111
united states. bureau of land management
66
united states international trade commission
56
alex smith
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Language
6,144
English
52
French
48
German
9
Spanish
3
Chinese
3
Dutch
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